Oblique or twisted border shape

Question

我很感兴趣,如果可以使用CSS创建包裹(或者更好的说扭曲)边框.我希望实现的效果如图所示.

Answer 1

最简单和最简洁的解决方案是svg用于创建边框.

#container {
  position: relative;
  width: 200px;
  height: 30px;
}
#content {
  text-transform: uppercase;
  position: absolute;
  width: 200px;
  height: 30px;
  top: 0;
  text-align: center;
  line-height: 30px;
}

<div id="container">
  <svg width="200" height="30" viewBox="-1 -2 201 33">
    <path d="M0,0 h200 l-15,15 l15,15 h-200 l15,-15z" stroke="black" stroke-width="2" fill="none" />
  </svg>
  <div id="content">lorem ipsum</div>
</div>

您甚至可以使用二次曲线将其调整为一些曲线.

#container {
  position: relative;
  width: 200px;
  height: 30px;
  margin-bottom: 30px;
}
#content {
  text-transform: uppercase;
  position: absolute;
  width: 200px;
  height: 30px;
  top: 0;
  text-align: center;
  line-height: 30px;
}

<div id="container">
  <svg width="200" height="30" viewBox="-1 -1 201 33">
    <path d="M0,0 h200 q-20,15 0,30 h-200 q20,-15 0,-30" stroke="black" stroke-linejoin="round" stroke-width="2" fill="none" />
  </svg>
  <div id="content">lorem ipsum</div>
</div>

<div id="container">
  <svg width="200" height="30" viewBox="-1 -1 201 33">
    <path d="M0,0 h200 q0,10 -15,15 q10,0 15,15 h-200 q0,-10 15,-15 q-10,0 -15,-15" stroke="black" stroke-linejoin="round" stroke-width="2" fill="none" />
  </svg>
  <div id="content">lorem ipsum</div>
</div>

<div id="container">
  <svg width="200" height="30" viewBox="-1 -1 201 33">
    <path d="M0,0 h200 q-10,0 -15,12.5 l15,2.5 l-15,2.5 q0,10 15,13 h-200 q10,0 15,-12.5 l-15,-2.5 l15,-2.5 q0,-10 -15,-12.5" stroke="black" stroke-linejoin="round" stroke-width="2" fill="none" />
  </svg>
  <div id="content">lorem ipsum</div>
</div>

您可以轻松添加阴影效果.

#container {
  position: relative;
  width: 200px;
  height: 30px;
  margin-bottom: 30px;
}
#content {
  text-transform: uppercase;
  position: absolute;
  width: 200px;
  height: 30px;
  top: 0;
  text-align: center;
  line-height: 30px;
}

<div id="container">
  <svg width="205" height="35" viewBox="-1 -1 205 38">
    <filter id="f">
      <feGaussianBlur stdDeviation="1.5" />
    </filter>
    <path filter="url(#f)" d="M0,0 h200 l-15,15 l15,15 h-200 l15,-15z" stroke="black" stroke-linejoin="round" stroke-width="2" transform="translate(0,3)" fill="black" />
    <path id="shape" d="M0,0 h200 l-15,15 l15,15 h-200 l15,-15z" stroke="black" stroke-linejoin="round" stroke-width="2" fill="white" />
  </svg>
  <div id="content">lorem ipsum</div>
</div>

<div id="container">
  <svg width="205" height="35" viewBox="-1 -1 205 38">
    <path filter="url(#f)" d="M0,0 h200 q0,10 -15,15 q10,0 15,15 h-200 q0,-10 15,-15 q-10,0 -15,-15" stroke="black" stroke-linejoin="round" stroke-width="2" transform="translate(0,3)" fill="black" />
    <path d="M0,0 h200 q0,10 -15,15 q10,0 15,15 h-200 q0,-10 15,-15 q-10,0 -15,-15" stroke="black" stroke-linejoin="round" stroke-width="2" fill="white" />
  </svg>
  <div id="content">lorem ipsum</div>
</div>

<div id="container">
  <svg width="205" height="35" viewBox="-1 -1 205 38">
    <path filter="url(#f)" d="M0,0 h200 q-10,0 -15,12.5 l15,2.5 l-15,2.5 q0,10 15,13 h-200 q10,0 15,-12.5 l-15,-2.5 l15,-2.5 q0,-10 -15,-12.5" stroke="black" stroke-linejoin="round" stroke-width="2" transform="translate(0,3)" fill="black" />
    <path d="M0,0 h200 q-10,0 -15,12.5 l15,2.5 l-15,2.5 q0,10 15,13 h-200 q10,0 15,-12.5 l-15,-2.5 l15,-2.5 q0,-10 -15,-12.5" stroke="black" stroke-linejoin="round" stroke-width="2" fill="white" />
  </svg>
  <div id="content">lorem ipsum</div>
</div>

或者,你总是可以使用:after和:before:伪元素.

该width和height的的:after和:before:伪元素使用一些基本的三角计算.

的opposite side是width与height所述的:after和:before:伪元素.左边的那个给出顶部和右边框,右边的边框给出顶部和左边框.然后,左侧的那个已经旋转45deg,右侧的那个已经旋转-45deg.

div {
  position: relative;
  text-transform: uppercase;
  width: 200px;
  height: 30px;
  text-align: center;
  line-height: 27px;
  border-top: 3px solid black;
  border-bottom: 3px solid black;
  box-sizing: border-box;
}
div:after,
div:before {
  position: absolute;
  content: '';
  width: 21.21px;
  height: 21.21px;
  border-top: 3px solid black;
  border-right: 3px solid black;
  transform: rotate(45deg);
  box-sizing: border-box;
  top: 1px;
  left: -9px;
}
div:after {
  border-right: 0;
  border-left: 3px solid black;
  left: 100%;
  margin-left: -10px;
  transform: rotate(-45deg);
}

<div>lorem ipsum</div>